Intelligence - nature/nurture debate

What is the definition of intelligence?

• The "... capacity to be smart"

• The "... ability to do well in school"

• The “… capacity to act purposely, to think rationally, and to deal effectively with the environment”

• The “… capacity to deal effectively with the environment”

Twin studies have always supported the Nature argument

• True

• False

In Nature vs Nurture controversy, nature refers to:

• Heredity

• Environment

• Plants and animals

In the debate of Nature vs Nurture, which side is more important?

• Nature

• Interaction

• Nurture

Fraternal twins have the exact DNA

• True

• False

Bouchard and McGue (1981) found that intelligence must be at least partially inherited because ....

• DZ (fraternal twins) raised apart have higher correlated IQ scores (0.72) than identical (MZ) twins raised together (0.60)

• MZ (identical twins) raised apart have higher correlated IQ scores (0.72) than fraternal (DZ) twins raised together (0.60)

• All twins have similar intelligence

When twin/adoption studies are used as evidence for genes determining intelligence, what is a confounding variable?

• their genes

• the environment

What is heritability?

• the degree that a trait is due to genetic factors (rather than the environment) within a population

• it is the same as heredity

• A type of IQ test

• The environment that an individual is raised

What is the cumulative deprivation hypothesis?

• The opposite of an enriched environment

• The idea that a deprived environment will result in a poorer IQ score than someone from an enriched environment

• The idea that prolonged exposure to a deprived environment will result in IQ score decreasing

Who proposed Reaction Range and when?

• Scarr and Weinberg (1981)

• Scarr and Weinberg (1991)

• Scarr (1981)

• Scarr (1991)